package edu.nju.desserthouse.servlets;

import java.io.IOException;

import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import nju.edu.desserthouse.model.Bonus;

import edu.nju.desserthouse.action.business.BonusInfoBean;
import edu.nju.desserthouse.dao.BonusDao;
/**
 * Servlet implementation class ChangeDiscountServlet
 */
@WebServlet("/changediscount.technician")
public class ChangeDiscountServlet extends HttpServlet {
	
	private static final long serialVersionUID = 1L;
    
	@EJB
	BonusDao bonusDao;
    /**
     * @see HttpServlet#HttpServlet()
     */
    public ChangeDiscountServlet() {
        super();
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		request.setCharacterEncoding("UTF-8");
		response.setCharacterEncoding("UTF-8");
		execute (request, response);
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		request.setCharacterEncoding("UTF-8");
		response.setCharacterEncoding("UTF-8");
		execute (request, response);
	}

	public void execute(HttpServletRequest req,HttpServletResponse resp) throws ServletException, IOException {
		String bonus_level = req.getSession().getAttribute("bonus_level").toString();
		
		double newDiscount = Double.valueOf(req.getParameter("discount")).doubleValue();
		
		Bonus bonus = bonusDao.find("level", bonus_level);
		bonus.setDiscount(newDiscount);
		bonusDao.UpdateByBonusId(bonus);
		
		BonusInfoBean bonusInfo = new BonusInfoBean();
		bonusInfo.setBonusList(bonusDao.getBonusList());
		req.getSession().setAttribute("bonusInfo", bonusInfo);
		resp.sendRedirect("/desserthouseWEB/technician/bonusmanage.jsp");
	}
}
